Construction



S. W. FOSTER.-

Smutr Machin@l nude una ceed to describe its construction and opera- "showing the bevel. Fig. 7 plan of the floor.

*U Tan sTaTns PATENT orricn.

SAMUE L W. FOSTER,

CONSTRUCTION OF Specification of Letters Patent No.

To all 'whom it may concern Be it known that I, SAMUEL W. FOSTER, of Scio, in the county of Vashtenaw; State of Michigan, have invented a new and useful Improvement in Machines for Cleaning Grain, called Fosters Improved Smut-Machine, which is described as follows, reference being had to the annexed drawings of the same, making part of this specification.

The lnature of my invention consists in constructing a floor of the cylinder with a rim or collar around Ythe shaft for'the purpose of preventing the grain from passing out between the shaft and cylinder'and in combination therewith adapting a disk to the aforesaid rim or collar by countersinking it, by which means a trough or channel is formed for the grain in which it is retained and operated with more effect than if thev bottom of the cylinder were a perfect plane. A

To enable others skilled in the art to which this invention appertains, I shall protion and then state what I claim as my invention. s

Figure l is a perspective View of the machine. Fig. 2 is a vertical section through the center of ditto; Fig. 3, horizontal sec tion at the line 0c so of Fig. 2; Fig. 4, underside of the movable part of the machine or disk; Fig. 5, top view of the inside of the stationary part of the machine or circular trough. Fig. 6, section of one of the wings Similar letters refer to similar parts in the figures.

This machine is an improvement on Yates7 smut machine patented during the present year 1839.

The moving part of this machine is described as follows: It consists of a vertical shaft A about four feet long and six inches in diameter with a steel pointed gudgeon in the lower end and a common cast iron gudgeon in the upper end; two arms B, Fig. 3, are put through the shaft near the middle and notched together and keyed tight; these arms are three feet and two inches long and twelve inches wide; but are notched in the lower side one inch and a half deep extending from the center toward each end eleven inches (see Fig. 2). These arms are made of plank one inch and a half thick and the upper side is cut away so as to be three quarters of an inch thinner than the lower OF SCIO, MICHIGAN.

SMUT-MACHINES.

1,436, dated Decemberl, 1839.

side, the slanting side of the arm being brought to a plane surface. This slant on the arm is made on opposite sides of the shaft so that each arm when it strikes the wheat will have a tendency to elevate it as well as to throw it horizontally forward (see B in Fig. 6). A circle of plank c, Figs. 2 and 3, one inch and a half thick, the diame ter of which is equal to the length of the notches cutout of the arms in the lower side, which circle is now nailed on to the underside of the arms. A circular rim D of plank two inches thick and eight inches' wide, the diameter of which is equal to the whole 'length of the arm (38 inches), is nailed on to the lower sides of the arms. The slanting side of the arms which vfirst strike the grain are covered with sheet iron and the under side of rim D mentioned is also covered with sheet iron and the outer edge of the rim D is also covered with sheet iron and filled with small nails driven in close together and projecting from the surface of the iron about half an inch. There are three small pieces of wood E, Fig. t, nailed on to the bottomV of the first mentioned circle C and against these are nailed small pieces of leather F in such a manner as to strike Jthe grains of wheat and prevent any of it from falling down around the shaft, the centrifugal motion throwing the grain from the center toward the periphery. On the shaft about a foot from the lower end is a whir G five inches thick and twelve inches diameter around which is passed a band for propelling the machine.

The framework or immovable part of the machine is constructed as follows: There are six posts H four of them about four feet long and two of them about five feet long three inches by four, in the lower end of the longest posts (which in the frame are opposite each other). There is a mortise in each an inch and a half by six inches; in these mortises rest the ends of a piece of timber I on which stands the lower end of the shaft; in this timber is placed a cast iron box with a steel step in it, to hold oil around they gudgeon. About two feet from the lower end of the posts there are .six curved girts K, Figs. l and 3, framed in; three inches square; and 17 and a half inches above these girts is the upper side of another tier of girts L, Fig. l, two inches by three inches; on the lower girts K is laid a circular floor M, Fig. 2, of planks two the projection of the last-mentioned rim of* inches thick with a'hole N, Fig. 7 in the center thirteen` inches diameter; VAround this hole on the upper sideV of the floor is fastened a lcircular rim O, Figs. 2 and 5, of

plank 2 inches thick and four inches wide; the top of this rim is covered with sheet iron R projecting one-fourth of an inch over and. beyond the periphery of the woodenrim Op to assist in preventing the wheat fromA flying down around the shaft. `Within this hole which is thirteen inchesin diameter and around the outside of itV is VVnailed a piece of leather P extending around and above the hole three-fourths of aninch, this piece of leatherand the last mentioned piece of sheet iron R, and the small pieces of leather and wood E and F nailed onto the moving part of the machine together with plank O and the .cavity or countersink on the moving. part or. disk to receive it,.ei`fec tually prevent the wheat vtrom wasting around the shaft.. The floor and theloutside or periphery of the rim D is covered with sheet iron and driven full of nails projecting from the sheet iron about half` an inch.

j Around the outside of the arms or `wings is` a covering Q, of sheet iron nailed onto the inside of the posts seventeen Yand a half inches wide and nailed to the inside of-the upper and lower tierV of curvedV girts Kand L. A covering S is then put overA the top Voi' theV arms or wings resting-on the upper tier of `girts L made of inch .boards with sheet iron on the lower side and filled with nails driven in near together andprojecting` down about half an inch. The wheat is let into the machine through an opening T in the top cover and is discharged at the bote tom through a spout V5 Fig. 7 which must be placed vin the bottom` of the machine a little tothe right or left from the Vspout through whichV the grainis admitted, according as the machine runs to the right or left; a cap Visplaced on the top of the two long partsin which is xed' a Wooden box for the upper gudgeon torunv in.

In operating with this machine the wings B notA only throw the grain against` the inside of the circular case Q in breaking the smut Vfrom the grain, but they also Adrive the dust through the` apertures in thecircular case Q, while the clean grain falls down through the'spout V. vWhat I claim asmy invention and which I desire to secure by Letters Patent consists `l. Constructing fthe' floor of the cylinder with a rim'or collarO around they shaft for the purpose of'preventing the grain from passing outA betweenjthe shaft'and cylinder and in `combination\ therewith4 adapting the disk (B C) to the aforesaid rim or collar O e in the "manner herein described by Qwhich means ajtrough or channel isformed for `the grain inwhich it is retained and operated upon with morexetl'ect-l than if the bottom of the cylinder were 'faperfect plane.

2Q Also the arrangement of the strips of" l woodEanjd pieces of leather F on the underside ofthe disk C for throwing `the Igrain fromthe-center toward; the peripheryo theA disk as described. Y j A SAMUEL W. FOSTER. Witnesses: e j ED. MAHER,l WMgRVELLIo'r. 

